JavaI/O系统2

  1 package com.lovo.day2;
  2 
  3 import java.io.IOException;
  4 import java.io.Serializable;
  5 import java.util.Date;
  6 
  7 public class Student implements Serializable {
  8 
  9     private static final long serialVersionUID = 4282130869653374904L;
 10 
 11     private String name;
 12     private int age;
 13     private boolean sex;
 14     private double money;
 15     private Date birth;
 16     private Course course;
 17 
 18     public Student(String name, int age, boolean sex, double money, Date birth,
 19             Course course) {
 20         super();
 21         this.name = name;
 22         this.age = age;
 23         this.sex = sex;
 24         this.money = money;
 25         this.birth = birth;
 26         this.course = course;
 27     }
 28 
 29     public String getName() {
 30         return name;
 31     }
 32 
 33     public void setName(String name) {
 34         this.name = name;
 35     }
 36 
 37     public int getAge() {
 38         return age;
 39     }
 40 
 41     public void setAge(int age) {
 42         this.age = age;
 43     }
 44 
 45     public boolean isSex() {
 46         return sex;
 47     }
 48 
 49     public void setSex(boolean sex) {
 50         this.sex = sex;
 51     }
 52 
 53     public double getMoney() {
 54         return money;
 55     }
 56 
 57     public void setMoney(double money) {
 58         this.money = money;
 59     }
 60 
 61     public Date getBirth() {
 62         return birth;
 63     }
 64 
 65     public void setBirth(Date birth) {
 66         this.birth = birth;
 67     }
 68 
 69     public Course getCourse() {
 70         return course;
 71     }
 72 
 73     public void setCourse(Course course) {
 74         this.course = course;
 75     }
 76 
 77     @Override
 78     public String toString() {
 79         return "Student [name=" + name + ", age=" + age + ", sex=" + sex
 80                 + ", money=" + money + ", birth=" + birth + ", course="
 81                 + course + "]";
 82     }
 83 
 84  /*   private void readObject(java.io.ObjectInputStream in) throws IOException,
 85             ClassNotFoundException {
 86         System.out.println("读");
 87         this.name = in.readUTF();
 88         this.age = in.readInt();
 89         this.sex = in.readBoolean();
 90         this.course = (Course) in.readObject();
 91         this.money = in.readDouble();
 92     }
 93 
 94     private void writeObject(java.io.ObjectOutputStream out) throws IOException {
 95         System.out.println("写");
 96         out.writeUTF(this.name);
 97         out.writeInt(this.age);
 98         out.writeBoolean(this.sex);
 99         out.writeObject(course);
100         out.writeDouble(this.money);
101     }
102   */
103 }

 1 package com.lovo.day2;
 2 
 3 import java.io.Serializable;
 4 
 5 public class Course implements Serializable {
 6 
 7     private static final long serialVersionUID = 1L;
 8     
 9     private int code;
10     private String name;
11 
12     public int getCode() {
13         return code;
14     }
15 
16     public void setCode(int code) {
17         this.code = code;
18     }
19 
20     public String getName() {
21         return name;
22     }
23 
24     public void setName(String name) {
25         this.name = name;
26     }
27 
28     public Course(int code, String name) {
29         super();
30         this.code = code;
31         this.name = name;
32     }
33 
34     @Override
35     public String toString() {
36         return "Course [code=" + code + ", name=" + name + "]";
37     }
38 }

 1 package com.lovo.day2;
 2 
 3 import java.io.BufferedOutputStream;
 4 import java.io.DataInputStream;
 5 import java.io.DataOutputStream;
 6 import java.io.FileInputStream;
 7 import java.io.FileNotFoundException;
 8 import java.io.FileOutputStream;
 9 import java.io.IOException;
10 import java.util.Date;
11 
12 public class DataTest {
13 
14     public static void main(String[] args) {
15         Student stu = new Student("张飞", 18, true, 10.0, new Date(), new Course(
16                 1, "语文"));
17 
18         /* 写 */
19         DataOutputStream out = null;
20 
21         try {
22             // out = new DataOutputStream(new FileOutputStream("d:\\test.txt"));
23             out = new DataOutputStream(new BufferedOutputStream(
24                     new FileOutputStream("d:\\test.txt")));
25 
26             out.writeUTF(stu.getName());
27             out.writeInt(stu.getAge());
28             out.writeBoolean(stu.isSex());
29             out.writeDouble(stu.getMoney());
30         } catch (FileNotFoundException e) {
31             e.printStackTrace();
32         } catch (IOException e) {
33             e.printStackTrace();
34         } finally {
35             if (out != null) {
36                 try {
37                     out.close();
38                 } catch (IOException e) {
39                     e.printStackTrace();
40                 }
41             }
42         }
43 
44         /* 读 */
45         DataInputStream in = null;
46 
47         try {
48             in = new DataInputStream(new FileInputStream("d:\\test.txt"));
49 
50             String name = in.readUTF();
51             int age = in.readInt();
52             boolean sex = in.readBoolean();
53             double money = in.readDouble();
54 
55             System.out.println("name=" + name + ", age=" + age + ", sex=" + sex
56                     + ", money=" + money);
57         } catch (FileNotFoundException e) {
58             e.printStackTrace();
59         } catch (IOException e) {
60             e.printStackTrace();
61         } finally {
62             if (in != null)
63                 try {
64                     in.close();
65                 } catch (IOException e) {
66                     e.printStackTrace();
67                 }
68         }
69     }
70 }